系统中有功功率不足，必定会造成(    )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69497' and id < 4501921 and id<>'4501921' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69497' and id > 4501921 and id<>'4501921' order by id asc limit 5